Method for the production of jointed strap-hinges.



G. MEYER.

METHOD FOR THE PRODUCTION OF JOINTED STRAP HINGES.

APPLICATION FILED JULYIY, 1913.

Patented Feb. 29, 1916.

2 SHEETSSHEET 1.

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G. MEYER.

METHOD FOR THE PRODUCTION OF JOINTED STRAP HINGES.

APPLlCATlON FILED 1ULY1L1913.

' 1,1?3,836. Patented Feb.29,1916.

2 SHEETSSHEET 2.

604? [fa/6 w ZQZZMM ear GUSTAV MEYER, F COLOGNE-RADERBERG, GERMANY, ASSIGNOR TO THE FIRM OF MEYER, ROTH'& PASTOR MASCIIINENFABRIK, 0F COLOGNE-RADERBERG, GEE-- MANY.

METHGD FOR THE PRODUCTION OF JOINTED STRAP-HINGES.

Application filed .Tuly 1'7, 1913.

To all whom it may concern Be it known that I, GUSTAV MEYER, a subject of the King of Prussia, German Emperor, and resident of Cologne-Baderberg, in the Province of the Rhine, Kingdom of Prussia, German Empire, have invented a certain new and useful Method for the Production of Jointed Strap-Hinges, of which the following is a specification.

The present invention relates to a method for the production of jointed or so called hinged bands.

In the accompanying drawing Figure 1 illustrates a suitable construction of the device in elevation, for demonstrating this method. Fig. 2 shows a plan View thereof and Fig. 3 a side elevation in partial section. Fig. a shows the plan of the matrix 2, in which from the strip of material 1, two halfhinges appear stamped out at 3 and 4:. Fig. 5 shows a section of the sleeves 13 and 1 1. Fig. 6 is an end View of a portion of Fig. 1.

As in previously known machines of this kind, the material 1 (Fig. 1) is automatically supplied to the machine as a strip or band. After the stamp slides 5 provided with the stamping tools 6 and 7 and the perforating stamps 8 (Figs. 1 and 3) have stamped out in the well known manner the two hinge pieces 3 and 4 (Figs. 1, 3 and 4:) a sliding piece 9 with plate 10 pushes the work 3, and a sliding piece 11 with plate 12 pushes the work 4 into the specially shaped guide sleeves 13 and 14 (Figs. 1 and 3) within which the strips on descending to the bending apparatus 15, (Figs. 1, 2 and 3) revolve 180, and are arranged side by side in the same direction in the bending apparatus 15 (Figs. 1, 2, 3 and 4). The section of these parts 13 and 14 is illustrated in Fig. 5. This turning of the halves of the hinges by 180 within the sleeves 13 and 14 has the object of bringing the ridges produced on the lower surface of the work by the stamp to lie uppermost at the bending point. On the tube 15, the bending would take place in the well known manner by means of the slide 16, but in the machine of the present Specification of Letters Patent.

Patented Feb. 29, 1916.

Serial No. 779,484.

construction, both adjacent halves of the hinge are bent at the same time (see Figs. 2 and 3). After bending the half hinges a mandrel 17 which is secured in the mandrel slide 18 is thrust into the bent over portions of both hinge halves and passes on the moving of the two parts, to the next point of working, which transport is efiected by means of the members 20 and .21 secured to the transporting slide 19 so that in this manner a perfectly straight line movement is efiected to the scraping point. The scraping takes place in any of the well known ways at the part of the machine where in Fig. 2 the working parts 3 and 1 are indicated in dotted lines. From this place the two scraped halves of the hinge are simultaneously thrust forward by means of members 23 and 24, placed upon the slide 22, on a drum 25 under the retaining ridges 28. This drum is illustrated in side elevation in Fig. 6. Before this transfer of the parts to the drum 25, there is again inserted a mandrel 26 which is supported in the mandrel slide 27, through the bent over portions of each hinge half in order to assure its exact and correct action. After the mandrel 26 has been withdrawn, by turning the drum 25, each pair of hinges is brought consecutively in front of the perforating mechanism, which is illustrated partly diagrammatically in Fig. 2, and which consists in the well known manner of a series of sidewise adjustable spindles 29, which spindles receive their motion by means of joints and jointed rods 30, 30 from the part 31. 'W hen the drum is further turned, the finished halves of the hinge fall out of the machine.

Having now described my invention, what I claim and desire to secure is,

The herein described method of producing jointed strap hinges consisting in taking a strip of hinge material of the desired dimensions, cutting said strip transversely into two parts, forming notches in an end of each said part, simultaneously forcing each half hinge into specially shaped guide sleeves by which they are brought into aline- Inent, bending over the notched end of each name to, this specification in the presence half hinge, forming said bent over notched of two subscribing witnesses. ends of each plece into an lnterlocking tube,

fitting into said tube a hinge pin and there- GUSTAV MEYER after punching screw holes in each said Witnesses: half hinge part. LOUIS VANDORN,

In testimony, whereof I have signed my FERDINAND ENGELS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

